| U.M. & M. (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| U.M.A. LIMITED | Private company limited by shares | Dissolved |
| U-MAC LIMITED | Private company limited by shares | Live |
| UMAC FORWARDERS EXPRESS LIMITED | Private company limited by shares | Dissolved |
| UMAGE HK LIMITED | Private company limited by shares | Live |
| IDRO UMAH ACT INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| U.M.A.H. (HK) LIMITED | Private company limited by shares | Live |
| UMAI UMAI LIMITED | Private company limited by shares | Dissolved |
| Umai Technology (Hong Kong) Co., Limited | Private company limited by shares | Live |
| Umai Communications Limited | Private company limited by shares | Live |
| UMAI GROUP LIMITED | Private company limited by shares | Live |
| Hongkong Umai International Co., Limited | Private company limited by shares | Live |
| U-MAI INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| UMAI INT'L DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Umai Place Limited | Private company limited by shares | Live |
| Umai Sushi Limited | Private company limited by shares | Live |
| UMAIL COMPANY LIMITED | Private company limited by shares | Live |
| Hk Umail Limited | | Live |
| Umaiya Company Limited | Private company limited by shares | Live |
| Umaiya Group Company Limited | | Live |
| Umaker Limited | Private company limited by shares | Live |
| U-MALL LIMITED | Private company limited by shares | Dissolved |
| Umall Limited | Private company limited by shares | Live |
| The Umami Limited | | Live |
| UMAMI CONCEPTS LIMITED | Private company limited by shares | Live |
| UMAMI HOLDING LIMITED | Private company limited by shares | Live |
| Umami JFood Limited | Private company limited by shares | Live |
| UMAMI SOLUTIONS LIMITED | Private company limited by shares | Live |
| UMAN LIMITED | Private company limited by shares | Live |
| GAUTAM UMANAND LIMITED | Private company limited by shares | Dissolved |
| U-MANI COMPANY LIMITED | Private company limited by shares | Dissolved |
| UMANN LIMITED | | Live |
| UMANO PLUS LIMITED | Private company limited by shares | Live |
| Umanta (Hong Kong) Company Limited | Private company limited by shares | Live |
| U-MAP TAI LIMITED | Private company limited by shares | Live |
| U-MAP Investment Consultant Limited | Private company limited by shares | Live |
| U-MAPS EdTech Limited | | Live |
| UMAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| Umaris Limited | Private company limited by shares | Dissolved |
| UMARK COMPANY LIMITED | Private company limited by shares | Live |
| U-MART LIMITED | Private company limited by shares | Dissolved |
| UMARXON INTERNATIONAL TRADE COMPANY LIMITED | | Live |
| Umat Limited | Private company limited by shares | Live |
| Umate Limited | Private company limited by shares | Live |
| UMateria Technology Limited | | Live |
| U-MAX LIMITED | Private company limited by shares | Dissolved |
| UMAX LIMITED | Private company limited by shares | Dissolved |
| U-MAX LIMITED | Private company limited by shares | Live |
| U-MAX LIMITED | Private company limited by shares | Live |
| NINGBO UMAX IMP. & EXP. CO., LIMITED | Private company limited by shares | Live |
| UMAX COMPONENTS LIMITED | Private company limited by shares | Live |
| UMAX CONSTRUCTION LIMITED | Private company limited by shares | Live |
| U-MAX CORPORATION LIMITED | Private company limited by shares | Dissolved |
| U-MAX ENTERPRISE CORPORATION LIMITED | Private company limited by shares | Live |
| U-MAX CRAFT COMPANY LIMITED | Private company limited by shares | Live |
| UMAX ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| UMax Wellness Fashion Group Limited | Private company limited by shares | Live |
| UMax Foundation Limited | 擔保有限公司 | Live |
| UMAX GLOBAL LIMITED | | Live |
| U-MAX GROUP INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UMAX DATA SYSTEMS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UMAX INDUSTRIAL (HK) CORPORATION LIMITED | Private company limited by shares | Live |
| U-MAX INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UMAX TECHNOLOGY MAKINE SANAYI VE TICARET LIMITED | | Live |
| U-MAX MARINE LIMITED | Private company limited by shares | Dissolved |
| UMAX Markets Limited | Private company limited by shares | Live |
| UMAX MEDICAL LIMITED | Private company limited by shares | Live |
| UMAX TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| uMax Data Technology Limited | Private company limited by shares | Live |
| UMAX TOOLS LIMITED | Private company limited by shares | Live |
| UMAX TRADING COMPANY LIMITED | Private company limited by shares | Live |
| U-MAX GROUP TRADING LIMITED | Private company limited by shares | Live |
| UMAXI LIMITED | Private company limited by shares | Live |
| UmaxTech Solution Limited | | Live |
| Umaxx Technology Limited | Private company limited by shares | Live |
| UMAY ENTERPRISE LIMITED | Private company limited by shares | Live |
| U-MAY GARMENT MANUFACTURER LIMITED | Private company limited by shares | Dissolved |
| U-MAY (INTERNATIONAL) TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UMAYA TRADING COMPANY LIMITED | | Live |
| UMBAR LIMITED | Private company limited by shares | Dissolved |
| UMBEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UMBEL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UMBELIALLE LIMITED | Private company limited by shares | Live |
| Umber Limited | | Live |
| UMBERGER AND ASSOCIATES (HK) LIMITED | Private company limited by shares | Dissolved |
| UMBRA HK LIMITED | Private company limited by shares | Live |
| San Umbra Co. Limited | Private company limited by shares | Live |
| Umbra Elk Limited | Private company limited by shares | Live |
| Umbraculum Citizen Church Limited | Company limited by guarantee | Live |
| UMBRAEX LIMITED | Private company limited by shares | Live |
| UMBREL LIMITED | | Live |
| LAI WAH UMBRELLA LIMITED | Private company limited by shares | Dissolved |
| TOP UMBRELLA CO. LIMITED | Private company limited by shares | Live |
| TZL UMBRELLA CO. LIMITED | Private company limited by shares | Live |
| HJ Umbrella Limited | Private company limited by shares | Live |
| USA FA UMBRELLA LIMITED | Private company limited by shares | Live |
| BIG UMBRELLA LIMITED | Private company limited by shares | Live |
| UMBRELLA LIMITED | Private company limited by shares | Live |
| CT Umbrella Limited | Private company limited by shares | Live |
| AI Umbrella Limited | | Live |